Experimental Analysis on Mitigation of Alkali-Silica Reaction by using Different types of Portland Cement

Ravi Agarwal, Nisheeth Agnihotri, U S Vidyarthi

Accelerated Mortar Bar, Alkali-Aggregate Reactions, ordinary Portland Cement; Portland Pozzolana Cement, Portland Slag Cement, Gel, Expansion Index Terms—first term, second term, third term, fourth te

In hydraulic cement concrete, most aggregates are chemically stable and do not interact negatively with other concrete constituent materials. This is not the case, however, with aggregates containing siliceous minerals that react with soluble alkalies in concrete. The alkali silica reaction, in which silica interacts with alkalis to generate a gel that expands and affects the mechanical characteristics of concrete, has the potential to be exceedingly disruptive. Alkali silica reaction is slowed by dilution of alkalis by increasing silica content with Portland Pozzolana Cement or Portland Slag Cement or mineral additives like fly ash, Micro Silica, Metakaolin, etc. The goal of this research is to see how Ordinary Portland Cement (OPC), Portland Pozzolana Cement (PPC), and Portland Slag Cement (PSC) affects ASR.